Caster Barn's 6 inch diameter by 2-1/2 inch wide Ductile steel wheel is a combination of specialalloys that give it higher weight capacitiesthan cast iron, and is more economical thandrop forged steel; also referred to as malleableiron; material may flex rather than crackingor breaking when submitted to an extremeshock load.
•Extra thick walled, heavy-duty core, hub & tread face. •Precision & tapered bearings maximize mobility and performance in towing and severe use environments. •Tensile strength of 45,000 PSI. •Temperature range: -45° F to 800° F.
Wheel Diameter:6" Tread Width:2 1/2" Tread Face:Flat Hub Length ( Width where Axle Goes Through ) :2 3/4" Maximum Capacity: 3500 lbs each Wheel Bearing:1" Roller Bearing Spanner:Yes Axle Diameter:3/4"